fuzz: disable features in honggfuzz

.github/workflows/fuzz.yml

@@ -30,7 +30,7 @@ jobs:
           toolchain: 1.58
           override: true
           profile: minimal
-      - run: cargo install honggfuzz
+      - run: cargo install honggfuzz --no-default-features
         if: steps.cache-fuzz.outputs.cache-hit != 'true'
       - run: echo "HFUZZ_RUN_ARGS=\"--run_time 30 --exit_upon_crash -v -f hfuzz_input/${{ matrix.fuzz_target }}/input\"" >> $GITHUB_ENV
       - name: fuzz

fuzz/Cargo.toml

@@ -12,7 +12,7 @@ afl_fuzz = ["afl"]
 honggfuzz_fuzz = ["honggfuzz"]
 
 [dependencies]
-honggfuzz = { version = "0.5", optional = true }
+honggfuzz = { version = "0.5", optional = true, default-features = false }
 afl = { version = "0.4", optional = true }
 bitcoin = { path = ".." }
 

fuzz/travis-fuzz.sh

@@ -9,7 +9,7 @@ if [ ${incorrectFilenames} -gt 0 ]; then
 fi
 
 # Testing
-cargo install --force honggfuzz
+cargo install --force honggfuzz --no-default-features
 for TARGET in fuzz_targets/*; do
 	FILENAME=$(basename $TARGET)
 	FILE="${FILENAME%.*}"